CVE-2025-4638

Description

A vulnerability exists in the inftrees.c component of the zlib library, which is bundled within the PointCloudLibrary (PCL). This issue may allow context-dependent attackers to cause undefined behavior by exploiting improper pointer arithmetic. Since version 1.14.0, PCL by default uses a zlib installation from the system, unless the user sets WITH_SYSTEM_ZLIB=FALSE. So this potential vulnerability is only relevant if the PCL version is older than 1.14.0 or the user specifically requests to not use the system zlib.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-119 Buffer Overflow

Affected Products

Vendor	Product	Versions
pointclouds	point_cloud_library	< 1.14.0

References

Advisories & Patches

https://github.com/PointCloudLibrary/pcl/commit/502bd2b013ce635f21632d523aa8cf2e04f7b7ac https://github.com/PointCloudLibrary/pcl/pull/6245

Other References

https://github.com/PointCloudLibrary/pcl/blob/master/surface/CMakeLists.txt#L70

Frequently Asked Questions

What is CVE-2025-4638? +

A vulnerability exists in the inftrees.c component of the zlib library, which is bundled within the PointCloudLibrary (PCL). This issue may allow context-dependent attackers to cause undefined behavior by exploiting improper pointer arithmetic. Since version 1.14.0, PCL by default uses a zlib installation from the system, unless the user sets WITH_SYSTEM_ZLIB=FALSE. So this potential vulnerability is only relevant if the PCL version is older than 1.14.0 or the user specifically requests to not use the system zlib. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-4638? +

CVE-2025-4638 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-4638? +

CVE-2025-4638 affects products from pointclouds, specifically: point_cloud_library. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-4638? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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